Carbon water filter

ABSTRACT

A filter for liquid, including well water, comprised of four large tubes, plugged at their ends and suspended vertically as a unit within a tank. The liquid is introduced into the tank in such a manner as to be sprayed in diverse directions near the tank&#39;&#39;s bottom to assure even circulation. The circulation is through circumferential slots or perforations in the tubes, but the liquid must first pass through a filter cloth wrapped around each tube, this cloth being coated with a mixture of activated powdered carbon, diatomaceous earth, and fiber. During this flow through the mixture, the filter cloth, and into the tubes through the slots or perforations, the taste of chlorine, rust, sediment, or any other undesirable substance is removed from the liquid. The tubes are connected with each other at their tops, from which connection is an outlet for the liquid.

United States Patent [72] Inventor Ernest WQHostetter 7 Lincoln, Iowa50652 [21] Appl. No. 878,693 [22] Filed Nov. 21, 1969 [45] Patented Oct.12, 1971 [54] CARBON WATER FILTER 6 Claims, 3 Drawing Figs.

[52] 11.8. C1 210/170, 210/206, 210/323, 210/449, 210/460 [51] int. ClBllld 35/02, BOld 29/24 [50] Field of Search 210/460, 462, 449, 323,333,170, 206

[56] References Cited UNITED STATES PATENTS 1,591,229 7/1926 Oliver eta1. 210/333 X 2,269,725 1/1942 Malanowski 210/193 X 2,625,273 1/1953Schuller ABSTRACT: A filter for liquid, including well water, comprisedof four large tubes, plugged at their ends and suspended vertically as aunit within a tank. The liquid is introduced into the tank in such amanner as to be sprayed in diverse directions near the tanks bottom toassure even circulation. The circulation is through circumferentialslots or perforations in the tubes, but the liquid must first. passthrough a filter cloth wrapped around each tube, this cloth being coatedwith a mixture of activated powdered carbon, diatomaceous earth, andfiber. During this flow through the mixture, the filter cloth, and intothe tubes through the slots or perforations, the taste of chlorine,rust, sediment, or any other undesirable substance is removed from theliquid. The tubes are connected with each other at their tops, fromwhich connection is an outlet for the liquid.

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cAnBoN WATER FILTER STATEMENT OF INVENTION This invention relates tofilters and, more particularly, to activated chemical filters forfiltering well water and the like.

OBJECTS OF THE INVENTION It is an object of the invention to provide animproved filter.

Another object of the invention is to provide a filter that is simple inconstruction, economical to manufacture, and simple and efficient touse.

DESCRIPTION OF THE DRAWINGS FIG. 11 is a schematic view of a filteraccording to the invention connected to a well.

FIG. 2 is a longitudinal cross-sectional view of the filter.

FIG. 3 is a top view of the filter.

DETAILED DESCRIPTION OF THE DRAWINGS Now with more specific reference tothe drawings, the filter is shown supported in a filter container whichmay be in the form of a tank it), having a cover 1111, inlet tube 113and 21, and outlet tube M supported on the cover by means of suitablelocknuts and the filter being disposed in the tank. The tank may be, forexample, a tank 335 2 inches deep and 9 inches in diameter. The inletpipe extends down and terminates in U- shaped pipes 115 which haveopenings 16 in their upper sides so that water will be directed uptoward the cylinders. The cylinders have closed ends and have openings17 in their upper ends which are connected to the pipes 22. The upperends of the pipes are plugged with plugs 20 which may be of cedar orredwood. A filter cloth 23 is wrapped around each of the hollowcylinders and held in place by clamps 24. The water may be supplied froma well 33 by a pump 32. Chlorine may be injected into the well from acontainer 25 and the container 110 may be connected to the outlet pipe Mas shown.

The cylinders 12 may be, for example, three inches in diameter and 33%inches long with three rows of slots 39 in each circumferential row.There may be 411 slots in each row, making a total of 123 slots in eachtube, for example. The large tubes or hollow cylinders are plugged withit-inch disks of dried cedar or redwood at each end. The hollowcylinders are covered with filter cloth showing the cylinder at the leftuncovered for better illustration. The filter cloth 29 is held in bystainless steel clamps 24 The filter cloth is precoated with a mixtureof powdered, activated carbon, a material sold under the trademarkAQUA-NUCHAR" prepared by the West Virginia Pulp & Paper Company ofCovington, Va. and with FIBRA-JFLO, which is a trademark for a productsold by the Johns-Manville Company. The FIBRA-FLO material is a mixtureof chrysotile asbestos fibers and a material known as l-IYIFLOSUPER-GEL," a trademark owned by the Johns- Manville Company. Theasbestos accounts for about 10% per cent of the weight of the mixture.The "l-lYFLO SUPER- CEL is a diatomaceous earth filter material. As thechlorine in the water is drawn from the top in the filters, through thecarbon precoat, the taste of chlorine and rust are removed from thewater. The chlorine is placed in the well 23 by means of a smallchemical feed pump 25, which operates in conjunction with the waterpump. A 20-gallon container may be used as a supply for chlorineindicated at 25. The chlorine may be provided by means of a five percentchlorine bleach. The filter core is precoated by filling about eightinches of water in the bottom of the tank 10, then precoat material isthoroughly mixed in. The tank is then filled to within eight inches toten inches of the top and well mixed. Then the core is gradually loweredinto the tank and the cover bolted in place. The water is then allowedto fiow from the filter through a faucet to a drain until it is clearand all the fine particles of carbon are washed out. The filter is thenready for use. When the flow of water through the filter has diminishedbelow the desired rate of flow, the core is removed, washed off of oldcarbon and rust and a new charge is put in and the filter is ready forreuse. The

tank may be drained by faucet 311.

The foregoing specification sets forth the invention in its preferredpractical forms but the structure shown is capable of modificationwithin a range of equivalents without departing from the invention whichis to be understood is broadly novel as is commensurate with theappended claims.

The embodiments of the invention in which an exclusive property orprivilege is claimed are defined as follows:

i. A filter comprising at least one hollow cylinder plugged at each end,

a pipeline connected in series with the inside of said cylinder,

said cylinder having openings formed in its outside surface,

a filter cloth disposed around the outside of said cylinder,

a container,

said cylinder being disposed in said container,

said pipe being adapted to be connected to a water supply,

and outlet means from said container,

at least four said cylinders being provided, said cylinders havingclosed ends,

said cylinders being disposed in side-by-side relation,

a tank,

said cylinders being supported in said tank,

a pipe connected to the top of said tank and terminating in a generallyU-shaped portion disposed below said cylinders,

said lJ-shaped portion of said pipe having spaced openings therein,

an outlet pipe connected through said container to the outside thereof,

openings in the side wall of each said cylinder,

and a filter web disposed around each said cylinder,

said web being coated with a material containing activated carbon,

said tank being connected to a water supply from a well containing ironand chlorine,

a pump for pumping said water from said well to said filter,

a dispensing means connected to said well for introducing chloride intosaid well.

2. The filter recited in claim 1 wherein said filter web is held inplace by straplike clamps.

Ill. The filter recited in claim I wherein said filter web is a filterclothlike material.

4. The filter recited in claim 3 wherein said outlet pipe is connectedto two generally U-shaped pipes, one connected to the closed end of eachsaid cylinder.

5. The filter recited in claim 4 wherein each said cylinder has aplurality of circumferentially disposed slots.

6. The filter recited in claim 1 wherein means is provided for directingwater from the inlet pipe to a position below said cylinders.

2. The filter recited in claim 1 wherein said filter web is held inplace by straplike clamps.
 3. The filter recited in claim 1 wherein saidfilter web is a filter clothlike material.
 4. The filter recited inclaim 3 wherein said outlet pipe is connected to two generally U-shapedpipes, one connected to the closed end of each said cylinder.
 5. Thefilter recited in claim 4 wherein each said cylinder has a plurality ofcircumferentially disposed slots.
 6. The filter recited in claim 1wherein means is provided for directing water from the inlet pipe to aposition below said cylinders.